The detach_model() docs say "Subsequent attempts to access the model will raise a RuntimeError" but that is not happening:
pre = Presolver(cqm)
pre.load_default_presolvers()
pre.detach_model()
cqm2 = pre.copy_model()
>>> type(cqm2)
dimod.constrained.constrained.ConstrainedQuadraticModel
>>> cqm2.is_equal(dimod.ConstrainedQuadraticModel())
True
The post-detach cqm2 = pre.copy_model() command gives no error and happily generates an empty CQM.
The
detach_model()docs say "Subsequent attempts to access the model will raise a RuntimeError" but that is not happening:The post-detach
cqm2 = pre.copy_model()command gives no error and happily generates an empty CQM.